"Gosh," he said. "I want to take the opportunity to state that although my days on network TV may be numbered, I hope 30 Rock goes on forever. Or at least as long as everyone involved desires."

Baldwin continued: "Next year hopefully won't be the last. Kenneth can run the network. Jenna will get her own talk show. Tracy will become Mayor of New York. Then resign to go raise reptiles. And Lemon will go do... just about anything she sets her mind to."

He concluded: "Here's to five more seasons."

30 Rock airs on Thursdays at 10/9c on NBC in the US and on Thursdays at 10.30pm on Comedy Central in the UK.